PERANCANGAN DAN PENGUJIAN ALAT SENSOR PH SERTA SUHU BERBASIS INTERNET OF THINGS UNTUK MONITORING LIMBAH INDUSTRI TAHU

Aqli Supremadi Naufal Pinandhita -  Universitas Islam Kadiri Kediri, Indonesia
Rizky Arief Shobirin* -  Program Studi Kimia, Fakultas Pertanian, Universitas Islam Kadiri Program Studi Tadris Kimia, Fakultas Tarbiyah dan Imu Keguruan, Universitas Islam Negeri Sayyid Ali Rahmatullah Tulungagung, Indonesia
Yanu Shalahuddin -  Program Studi Teknik Elektro, Fakultas Teknik, Universitas Islam Kadiri, Indonesia
Srikalimah Srikalimah -  Program Studi Akuntansi, Fakultas Ekonomi, Universitas Islam Kadiri, Indonesia

DOI : 10.24269/mtkind.v17i1.6836

Tofu wastewater has negative impact on the river ecosystems and local residents because its smell and acidity. Therefore, this research aimed to design tools and test pH and temperature sensors based on Internet of Things (IoT) for monitoring the results of the installation of tofu waste wastewater treatment (WWTP) system in real time as wastewater quality monitoring system development thus it capable for wastewater monitoring intensively. Methodology of this research was experimentally for designing monitoring tools, which at tool design stage using an ESP 8266 microcontroller, pH4502c and DS18B20 as pH and temperature sensors, respectively. And also, it was communicated with Arduino IDE and Blynk software to create program code on the microcontroller and as monitoring on the computer server and smartphones, respectively. The used statistical compatibility test was percentage error, validity and reliability tests based on the monitoring tool data response to observed its suitability of the wastewater monitoring tool set for sustainability in home industries. In the %error test, there were results in reading values by the pH and temperature sensor of 0.92-1.45% in the tofu waste and whole neutralization, coagulation, sedimentation and filtration compartments; however, there was %error result of 0.92-7.31% on the pH sensor for the tofu wastewater tub. There were very valid and reliable results on tofu waste and whole compartments of the WWTP. Based on these results, the wastewater monitoring tools set was declared suitable for continuous use in the tofu industry with recommendations for routine calibration at least every 3 days of use.

Keywords
Tofu Wastewater; pH; Temperature; Internet of Things; Compatibility Test
  1. Srikalimah, L.W. Wardhana, D. Ambarwati, U. Sholihin, R.A. Shobirin, N. Fajariah, “The Ability of MSMEs in Kampoeng Tahu Tinalan to Deal With the COVID-19 Pandemic: A Structured Study of Whole Aspects Through Preliminary SWOT Analysis”, in International Research Conference on Economics and Business, KnE Social Sciences, pp. 163–175, July 14, 2021. DOI 10.18502/kss.v5i8.9356.
  2. A. Chusna, “Perajin Tahu Kediri Membutuhkan Alat Pengolah Limbah. https://jatim.antaranews.com/berita/313692/perajin-tahu-kediri-membutuhkan-alat-pengolah-limbah, 2019, diakses tanggal 14 Februari 2022.
  3. Srikalimah, R.A. Shobirin, Y. Shalahuddin, M.S. Mubarok, dan A.S.N. Pinandhita, “Implementasi Green Economy pada Sistem IPAL dan Sensor Terintegrasi di Industri Tahu Kediri,” JPM (Jurnal Pemberdayaan Masyarakat), Vol. 7, No. 2, pp. 909-917, 2022.
  4. N.I. Said, Teknologi Pengolahan Air Limbah: Teori dan Aplikasi. Jakarta: Penerbit Erlangga, 2017.
  5. Peraturan Pemerintah Republik Indonesia No. 27 Tahun 2012 tentang Izin Lingkungan.
  6. G.F. Arafat, A. Wijayanto, dan N.A. Prasetyo, “Rancang Bangun Sistem Monitoring Pengolahan Limbah Cair Tahu Di Kabupaten Purbalingga Berbasis Internet of Things,” Jurnal Media Informatika Budidarma, Vol. 6, No. 3, pp. 1329–1338, 2022. DOI: 10.30865/mib.v6i3.3863
  7. Keputusan Menteri Negara Lingkungan Hidup No. KEP-51/MENLH/10/1995 tentang Baku Mutu Limbah Cair Bagi Kegiatan Industri Menteri Negara Lingkungan Hidup.
  8. Peraturan Menteri Lingkungan Hidup dan Kehuatanan No.68 th 2016 tentang Baku Mutu Air Limbah Domestik.
  9. W. J. Putri, dan I. Isa, “Studi Literatur Sensor Glukosa Untuk Darah Manusia Menggunakan Sensor Elektrokimia Berbasis Glassy Carbon Electrode (GCE) dengan Metode Voltametri,” Jurnal Fisika Unand, Vol. 10, No. 3, pp. 324–329, 2021.
  10. D. Ramdani, F.M. Wibowo, dan Y.A. Setyoko, “Rancang Bangun Sistem Otomatisasi Suhu Dan Monitoring pH Air Aquascape Berbasis IoT (Internet Of Thing) Menggunakan Nodemcu Esp8266 Pada Aplikasi Telegram,” Journal of Informatics, Information System, Software Engineering and Applications, Vol. 3, No. 1, pp. 59–68, 2020. DOI: 10.20895/INISTA.V2I2.
  11. S.P. Chapra, R.P. Canale, Numerical Method for Engineers, New York: McGraw-Hill Book Company, 2015.
  12. I. Ernawati, dan W.R. Islamiyah, “Uji Validitas Dan Reliabilitas Kuesioner Kepatuhan MGLS (Morisky, Green, Levine Adherence Scale) Versi Bahasa Indonesia Terhadap Pasien Epilepsi”, Jurnal Ilmiah Ibnu Sina (JIIS) Ilmu Farmasi dan Kesehatan, Vol. 4, No. 2, pp. 305–313, 2019.
  13. R. Sarwiningsih, “Komparasi Ketepatan Estimasi Koefisien Reliabilitas Tes Ujian Nasional Kimia Provinsi Jambi Tahun Ajaran 2014/2015,” JKPK (Jurnal Kimia dan Pendidikan Kimia), Vol. 2, No. 1, pp. 34–42, 2017.
  14. Direktorat Standar Nasional Satuan Ukuran Termoelektrik dan Kimia, Panduan Pengukuran pH dengan Teknik Kalibrasi Dua Titik (SNSU PK.K-01:2022), Jakarta: Badan Standarisasi Nasional, 2022.
  15. S. Maharani, dan E. Suprapto, Analisis Numerik berbasis Group Investigation untuk Meningkatkan Kemampuan Berpikir Kritis, Magetan: CV. AE Media Grafika, 2018.
  16. A. Kulasekaran, A. Gopal, R. Lakshimipathy, J.J. Alexander, “Modification in pH Measurements for Getting Accurate pH Values with Different pH Meters Irrespective of Aging and Drifts in the Meters”, International Journal of ChemTech Research, Vol. 8, No. 5, pp. 16-24, 2015.
  17. P. Jennings, C. Mullen, and M. Roy, Titration and pH Measurement, in eLS, New York: John Wiley & Sons, Ltd. (Ed.), 2010. DOI: 10.1002/9870470015902.a0002700.pub2

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Submitted: 2023-03-07
Published: 2024-08-16
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